Smoke-consumer.



C. HOCKER.

SMOKE CONSUMER.

APPLlCATlON FILED APR-24. 19l4- 1,159,028. Patented Nov. 2, 1915.

2 SHEUS-SHEET 1.

was. fia/ er,

c. HOOKER. SMOKE CONSUMER.

APPLICATION FILED APR. 24, l9l4.

1,159,028, Patented Nov. 2, 1915.

2 SHEETS-SHEET 2.

Smvwmtoz UNITED, STATES PATENT OFEICE.

cmms HOOKER, or nunrmemme, INDIANA.

stron -consumes.

To all whom it may concern:

Be it known that I, CHARLES HOOKER, a citizen of the United States, residing at Huntingburg, in the county of Dubois and State of Indiana, have invented a new and useful Smoke-Consumer; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to-a new and useful smoke consumer applicable to furnaces and the like.

An object of the invention is to provide means whereby the smoke or products of combustion are conveyed back and projected into the fire-box above the fire on the grate with suifieient percentage of oxygen from a blower, so as to be consumed by the fire.

One of the features of the invention is to arrange a pipe or flue connection between a blower of conventional form and the smoke fiue or stack at an angle of substantlally 35 degrees, there being a deflector for deflecting smoke or products of combustion into saidflue or pipe connection.

Another feature is the arrangement of a flue between the fire-box and the blower, for conveyingthe products of combustion together with oxygen in'the fire-box, said return pipe where it enters the fire-box is disposed at an angle of substantially 85 degrees, so as to allow the smoke or products of combustion to properly enter the firebox, there being an adjustable deflector for deflecting the smoke and oxygen substantially toward and over the fire. The flu'e or pipe that enters the fire-box is provided with a spray nozzle, whereby the smoke and oxygen is sprayed against the deflector in the re-box. By this arrangement a continuous circulation is maintained by the blower, which causes the draft that enters through the grate in the fire to draw more air than natural or usual, that is, more air than the usual draft without the blower, which surplus air is consumed by the carbon and gas and makes heat. In practical fields the details of construction may necessitate alterations, falling within the scope of what is claimed. The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed."

In the drawings :Figure 1 is a vertical sectlon al view through a furnace showing Speelflcatmn of Letters Patent.

damper is closed the products-of combustion .the box.

Patented Nov. 2, 1915'.

Application filed am 24, 1914. Serial No. 834,196.-

the improved smoke consumer as applied thereto. Fig. 2 is an enlarged detail view of the deflector in the smoke flue or stack, showing the deflector in another position than shown in Fig. 1. Fig. 3 is a sectional v1ew on line 3-3 Fig. 1. Fig. 4 is an enlarged detail view of the deflector in the firebox, showing said deflector in another position than shown in Fig. '1. Fig. 5 is. a sectional view of the furnace showing the deflector eliminated.

Referring more especially tothe drawings, 1 designates the usual form of furnace having a fire-box 2, an ash pit 3, and a grate 4, which divldes the ash pit and the fire-box. The usual boilerv5' is illustrated, which is provided with the usual tubes /or 'flues 6. The'products of combustion, as indicated b the arrows a pass through the passages and 8, and through the tubes or flues 6', and

out through the smoke stack 9, which is proyided with a damper 10. Upon'first startlng the fire in the fire-box, the damper 10 is thrown open to allow the smoke or products 8 Y of combustion to pass out throughthe smoke stack. After the fireis-well under way, the

damper 10 is closed, then the blower 11 is operated-in the usual manner. 'After the are deflected by the deflector 20 through the flue 12 to the blower. The blower 11 is connectedto the smoke stack by thepipe or flue 12, and toy the fire box by the pipe or flue 13. After the smoke or products of combustion enter the flue 12 they pass through the blower then through the flue 13 and deflector on the fire bed, then back through the flue 6, thereby making a continuous circuit. The products of combustion will pass through the flue 12, when the damper 10 is closed, even'though the products of combustion are not deflected by the deflector 20. Where the flue orpipe 12 connects to the stack 9,the same is disposed 100 it enters the fire-box is arranged at an angle of 85 degrees to the smoke stack, so a's jat'o" properly spray the smoke and oxygen over 105 y the fire-bed so as to mingle with the heat in The flue or pipe 13 is provided with a spray nozzle 15 for spraying the smoke; and

oxygen against a deflector 16. This deflector no 16 maybe adjusted-so as to direct the mixture of smoke and oxygen 1n different direc- 16 downwardly the smoke and oxygen may be directed substantially toward the fire-bed,

as shown in Fig. 1, and by adjusting the deflector 16 as shown in Fig.1, the smoke and oxygen may be partly directed toward the fire-bed and upwardly. The deflector 16 has its free end portion disposed at a slight obtuse angle to the part 17 so as to allow the smoke and oxygen to pass through the firebox as indicated by the arrows.

The part 17 of the deflector 16 is curved as shown, and the smoke and oxygen as it leaves the spray nozzle are directed toward the deflector, and are confined for a short period in the space under the deflector and adjacent-the fire bed, and by means of the free end portion of the deflector, which free end portion is at a slight obtuse angle to the curved part 17 of the deflector, the smoke and oxygen as it passes from under the dcflector is held for a short period against the top of the fire bed. By adjusting the deflector 16, so that the free end portion or lip of the deflector is considerably close to the top of the fire bed the smoke and oxygen are partially projected into the fire bed. The pivot of the deflector has a lever 16 at one end whereby the deflector may be actuated, and is provided with a dog 16, to engage the teeth of the rack 16, for holding the deflector 16 in adjusted positions. By lowering through the grate and fire from the ash pit,

the deflector 16, the free end portion or lip is brought closer to the top of the fire bed, thereby 'restricting'the throat or passage between the free end portion or the lip and the fire bed, the lever 16 with its pawl or dog acting to hold the deflector in such adjusted positions. As the smoke and oxygen pass through the fire-box it tends to draw the usual draft together with a surplus of air by way of the usual air draft opening 18 of the ashpit. This air draft and the Surplus air is consumed by the carbon and gas in the smoke to transform it into heat The products of combustion from the fire-bed, the usual air draft and surplus air, together with the return smoke and oxygen passes through the passages 7 and 8 and through the flue 6, through the stackand the flue 12, and makes continuous circuit back to the fire box by vway of the blower and the pipe or flue 13.

Asthis continuous circuit is maintained, the smoke is consumed.

The smoke stack is provided with a deflector 20, which is pivoted in a manner similar to the damper 10, and may be adjusted as shown in Fig. 3 so as to-deflect more or less of the products of combustion through the flue or pipe 12. This deflector 20 is dished or concaved as shown in Figs. 3 and 1, to insure the deflection of the smoke through the pipe 12. If desired, the damper 10 may not be employed, remaining open msaoae I at all times, the/deflector 20 acting both as a deflector and a damper. By dishing or concaving the dzflector, the products of combustion or sm0ke is cupped, thereby reducing the escape of the products of combustion'through the stapk to a minim ,The deflector 20 is also arranged substantiallyat an angle of 35 degrees to the smoke stack, substantiall a continuation of the angle of the flue 12 where it eiiters the stack.

The combined deflector and damper 20 has its edge portion 20 soshzfiped as to engage tight against the lower p rtion of the flue 12, as shown at 20, where/the flue 12 enters or communicates with thc stack. The damper and deflector 20 is mounted upon a pivot rod 20:, r ectangular in cross section, and whlch rod is mounted in suitable bearings of the stack. On one end of the rod 20- an .flector isheld to close the stack and deflect the products of combustion through the flue 12, by virtue of the gravity member or weight 20. When the combined damper and deflector is disposed as shown in full lines in Fig. 2, to partially close the flue 12, the gravity or weight member 20 holds the damper or deflector in such position, and when in such position the products of combustion are deflected through the stack. When the damper or deflector 20 is arranged as illustrated in Fig. 1 the products of combustion are deflected through the flue 12, and by virtue of the blower 11, which draws oxygen into the casing of the blower and m xes it with the products of combustion,

I the stack, thereby permitting most of the products of combustion to pass oil through the stack. In this case the blower may be still in operation, but not quite as fast, as when the damper or deflector is disposed as shown in Fig. 1, so as to draw the smaller portion of the products of combustion through the flue 12 by virtue of the space 20 in Fig. 2, to be mixed with the oxygen or air drawn into theblower.

By means of the blower a suction is created in the flue or. pipe 12 acting to draw the productsof combustion from the stack. As shown in Fig. 5, the damper 10 may be entirely eliminated or dispensed with, in which case, as before stated, the deflector 20 willact as the damper, as well as the deflector. When the deflector 20 is disposed as shown clearly in Fig. 2 in full lines, and the damper 1O dispensed with, the

deflector 2O acts to substantially close or shut off the products of combustion through the flue 12, in other words partially deflect the products of combustion throughthe stack. However, when either one of the dampers 10 or the deflector 20 is closed to partially shut off the products of combustion from passing through the stack, a portion of the products, nevertheless passes out through the stack, by reason of the fact that in practice, neither the deflector or the damper, is designed to close with a tight fit.

The invention having been set forth, what is claimed as new and useful is 1. In combination-with a furnace, a flue connected to the smoke stack of the furnace and extending upwardly and laterally at an angle to the stack, a blower to which the said flue is connected and having a flue connection with the fire box of the furnace, a combination damper and deflector pivoted in the stack and when closed disposed at an angle substantially a continuation of the angle of the first flue to deflect the products of combustion through the first flue, said combination damper and deflector when partially closing the first flue acting to deflect the majority of the products of combustion through the stack, the pivot of the combination damper and deflector having a rigid arm, and a gravity member on said arm for holding the combined damper and deflector in a position to partially close the first flue or in another position to close the stack.

2. In combination with a furnace having a fire box and provided with an exit flue,.a return flue from the exit flue to the fire box, means'for deflecting the products of combustion through the return flue, a deflector pivotally mounted in the fire box immediately above where the return flue enters the fire box, said deflector ha ing a curved portion arching downwardly over where the return flue enters the fire box and toward the fire bed, thereby forming a space adjacent the fire bed for partially confining the products of combustion for a short period, said deflector having a free end straight portion or lip extending at an obtuse angle to the body of the deflector for holding the products of combustion against the fire bed for a short period.

the fire box, said deflector having a curved portion archingdownwardly over where the return flue enters the firebox and toward the fire bed, thereby forming a space ad acent the fire bed for partially confining the products of combustion for a short period, said deflector having a free end straight portion or lip' extending at an obtuse angle tothe body of the deflector for holding the products of combustion against the fire bed for a short-period, and means for adjusting the deflector on its pivot and holding it adjusted.

4. In combination with a furnace having a fire box and provided with an exit flue, a return flue from the exit flue to the fire box, means for deflecting'the products of combustion through the return flue, a deflector pix-'otally mounted in the fire box immediately above where the return flue enters the fire box, said deflector having a curved portion arching downwardly over where the return flue enters the fire box and toward the fire bed, thereby forming a space adjacent the fire bed for partially confining the products of combustion for a short period, said deflector having a free end straight portion or lip extending at an obtuse angle to the body of the deflector for-holding the products of combustion against the fire bed for a short period, and means in the return flue for drawing oxygen into the flue to mm with the products of combustion.

In testimony whereof I havesigned my name to this specification in the presence of two subscribing Witnesses.

CHARLES HOCKER.

Witnesses HENliY J. RoBERTsoN, PHILIP F. RENNER. 

